ART. 28 CHALCID FLIES NORTH OF MEXICO — BALDUF 51 



half and basal parts of front and inner surfaces, which are black, 

 trochanters yellow, fore femora mostly fuscous outwardly, mid 

 femora including upper and lower faces same, hind femora also 

 fuscous with only outer face mostly yellowish, tibiae mostly brown, 

 front pair only outwardly, middle pair entirely except inwardly, 

 and hind pair completely, only bases and apices narrowly not so, 

 tarsi stramineous-yellow, apex a bit darker; submarginal band 

 brown, about twice as long as broad, reaching two-thirds across 

 wing, broadest at middle, barely narrower here than length of 

 stigma, tapering and fading irregularly toward its apex, proximal 

 margin broadly rounded but not quite regular, distal margin ex- 

 panding broadly at middle but not extending quite so far as end of 

 stigmal vein, secondary band very faint; petiole black, abdomen 

 black or dark brown, except anterior-ventral aspect, which is in 

 small part yellowish brown. 



Body fairly robust; head three-fifths as long as broad almost its 

 entire width, face not prominently convex, temples convex, occiput 

 moderately concave from above; vertex and occiput moderately to 

 sparsely umbilicate punctate, punctures small and shallow, intervals 

 between umbilicate punctures finely and densely punctate, genae more 

 coarsely and sparingly pitted, posterior orbits and malar spaces in 

 part finely wrinkled, latter largely smooth, polished ; face reticulate 

 punctate; head rather sparsely hairy, antennae more densely so, 

 scape slightly longer than pedicel and Fl combined, pedicel about 

 a fifth longer than Fl, latter one-fourth longer than F2, each of 

 following funicular joints barely shorter and thicker than the pre- 

 ceding, F2 a fourth longer than broad, and Fo almost as broad as 

 long, club compact and tapering to blunt tip, and as long as F5, F4, 

 and half of F3 combined; head one-sixth broader than pronotum 

 and slightly broader than mesothorax ; nota of thorax quite coarsely 

 umbilicately punctate, sides of pronotum longitudinally strigose, 

 mesopleura moderately concave, aciculate and finely punctate on 

 anterior sclerite, posterior half feebly convex, finely and more 

 densely aciculate, the fine punctures not readily visible; propodeal 

 groove crossed by a V-shaped carina, its apex broadly rounded, 

 groove mostly polished but feebly rugose on more than posterior 

 half, remainder of the segment rather coarsely reticulate; submar- 

 ginal vein with 13 to 15, more often the latter, setae, hairs on apical 

 margin of front wing slightly longer than normal ; first three abdom- 

 inal segments highly polished, fourth semiopaque, very finely granu- 

 lose, posterior face of abdomen moderately punctate and hairy, hairs 

 coarse. 



Male. — ^Length 2.6 to 3 mm., colors, vestiture, and dimensions as 

 described for female; scape of antennae slightly stouter than in the 



